Finally, another key ongoing challenge is around Responsible AI. As we pointed out in Section REF , Responsible AI is a complex and evolving topic. New challenges are evolving on a regular basis and the need to continually evolve new guidelines for Human-AI interaction [1]} evolves with those challenges. One of the key challenges currently in Responsible AI for conversational systems is the need to defend against harms and mitigate potential toxicity and bias [2]}, [3]}, [4]} – either in training data, introduced through feedback and usage, or simply inappropriate due to local culture or context. In terms of privacy, as device-based assistants are extended to have personal information capabilities, even with authentication, the systems may need to defer disclosing personal information if other parties are present. This is similar to challenges for privacy reported on email notifications when a screen is being shared [5]}.
